HOGANAS, Sweden (CNN) -- Swedish artist Lars Vilks says all he's doing is taking a stand in the name of artistic expression. But because of that stand, on this afternoon he's lying low -- on the ground, in fact -- looking for bombs under his car.

Al Qaeda has put a $100,000 price on his head and offered an extra $50,000 for anyone who murders him by slitting his throat after the eccentric artist and sculptor drew a cartoon depicting the Prophet Mohammed as a dog.

"I don't think it should not be a problem to insult a religion, because it should be possible to insult all religions in a democratic way, " says Vilks from his home in rural Sweden.

"If you insult one, then you should insult the other ones."

His crude, sketched caricature shows the head of Prophet Mohammed on the body of a dog. Dogs are considered unclean by conservative Muslims, and any depiction of the prophet is strictly forbidden.

Vilks, who has been a controversial artist for more than three decades in Sweden, says his drawing was a calculated move, and he wanted it to elicit a reaction.

"That's a way of expressing things. If you don't like it, don't look at it. And if you look at it, don't take it too seriously. No harm done, really," he says.

When it's suggested that might prove an arrogant -- if not insulting -- way to engage Muslims, he is unrelenting, even defiant.

"No one actually loves the truth, but someone has to say it," he says.